With all due respect, I would amend that statement with "unless they plan to do a serious upgrade"

To say that a 125 motor with a DR kit transformed my 50 is a huge understatement. I don't know the condition of this bike, but if it could be bought at the right price, this kind of upgrade is certainly cost justified (in my opinion).

I agree, Derrick. There are smallframe 125's to be had out there that might be a better starting point. As you pointed out, it's a question of the real selling price of this bike.

In my situation, I already had a nice smallframe with relativly little dollars invested. That allowed me to choose the total pk125-motor-with-kit transplant option. I still have the complete 50cc 4 speed motor (wanna buy it?).